<template>
  <div class="cart">
    <!-- 导航栏 -->
    <nav-bar class="nav-bar">
      <div slot="center">购物车({{length}})</div>
    </nav-bar>

    <!-- 商品列表 -->
    <cart-list/>

    <!-- 底部汇总 -->
    <cart-bottom-bar/>
  </div>
</template>

<script>
  import NavBar from 'components/common/navbar/NavBar'
  import CartList from './childComps/CartList'
  import CartBottomBar from './childComps/CartBottomBar'

  import {mapGetters} from 'vuex'


  export default {
    name: "Cart",
    components:{
      NavBar,
      CartList,
      CartBottomBar,
    },
    computed:{
      // 两种语法:
      // ...mapGetters(['cartLength'])
      ...mapGetters({length:'cartLength'})
      // cartLength(){
        // return this.$store.state.cartList.length
        // return this.$store.getters.cartLength
      // }
    }
  }
</script>

<style scoped>
  .nav-bar{
    background-color: var(--color-tint);
    color:#fff;
  }

</style>
